In addition to the synthetic industrial rubber, we are happy to offer you an eco-friendly Rubber Stopper made of natural pure gum rubber. Natural Pure Gum Rubber Stoppers are made from the elastomer harvested from the rubber tree. This sustainable material produces a superior rubber stopper. All our rubber products are manufactured with only high quality raw materials. WidgetCo's rubber products are a great tool for your business or DIY project. Our rubber products are all industrial grade and form excellent rubber stoppers in EPDM, Silicone, Neoprene and natural Pure Gum. We also offer specialty space balls for the cabinet industry. Shop a wide variety of rubber products; our most popular being our EPDM Rubber Stoppers ideal to plug openings and as laboratory stoppers. Our rubber products are incredibly durable, adding a superior seal to a multitude of applications.